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Latest news:

The book "Hypogene Karst Regions and Caves of the World" is finished
The book “Hypogene Karst Regions and Caves of the World” is going to be published by Springer, in its series “Cave and Karst Systems of the World”.
Karst session at the AGU Fall 2016 Meeting in San Francisco
There will be a karst session at the AGU Fall 2016 Meeting in San Francisco, USA in December 12-16: Characterization, Modeling, and Remediation of Fissured, Carbonate, and Karst Groundwater Systems
A new book on caves and karst in Austria
A book "Höhlen und Karst in Österreich" (Caves and karst in Austria; Editors: Christoph Spötl, Lukas Plan & Ehrad Christian) will be printed until mid of July. Subscription is available.
Unusual perspective on caves
Many inspiring ideas on caves can be found in images created by children, generated by the International Contest of Kid’s Drawing "Caves in the Eyes of our Children".
Session on Karst Aquifers at the 43th IAH Congress, France
A call to submit an abstract to a session devoted to karst aquifers, which will be held in September in Montpellier during the 43rd IAH Congress

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Did you know?

That gushing spring is see spring, vauclusian.?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms

Featured article from geoscience journal

Journal of Hydrology, 2010, Vol 388, Issue 0, p. 241-250
Modeling three-dimensional karst aquifer evolution using different matrix-flow contributions
Abstract:

We have developed the program package KARSTAQUIFER, which simulates flow and transport in a three-dimensional transient karst aquifer consisting of fractures and matrix elements. The fractures can be enlarged by chemical dissolution of calcite, increasing the secondary permeability of the karst aquifer. Boundary conditions for our model setup are guided by published benchmark models for karst aquifer evolution in two dimensions (length and width), with a 100 m high hydraulic head difference across the model domain responsible for relatively fast evolution of the aquifer. We are interested in the effect of the third dimension on the evolution of the karst aquifer, especially the effect of matrix flow, with a matrix defined either as porous medium or as fine fracture system, or both. We first discuss our model results using a pseudo-3D setup to be able to directly compare results to the 2D benchmark scenarios published. We then discuss real-3D models with a prominent fault located in the central part of the aquifer, connecting input and output regions. Finally, we replace the prominent fault with a statistical fracture diameter distribution. Our results compare well with existing 2D scenarios, and the additional third dimension offers new insights into the evolution of karst aquifers. Especially the role of matrix flow under fixed-head boundary conditions in their early phases can be studied in more detail.